我与乡下少妇的性事_色琪琪综合男人的天堂aⅴ视频_大胸喂奶秘书3p高h_国产一区二区视频在线播放_国产老头gay和老头gay视频_中文字幕亚洲欧美_国产男人搡女人免费视频_伊人色综合久久天天五月婷_崔雪莉被金秀贤握胸动态图_毛片在线视频观看

首頁 > transformer
  • KS C IEC 61558-2-6-2017 Safety of power transformers,power supply units and similar devices－Part 2：Particular...2024-02-22
  • KS C1706-2020 Instrument transformers for testing purpose and used with general instrument2024-01-31
  • UL 5085-1 BULLETIN-2017 Ul Standard For Safety Low Voltage Transformers - Part 1: General Requirements (Com...2024-01-19
  • IEC TS 60076-20-2017 電力變壓器--第20部分:能源效率 Power transformers – Part 20: Energy efficiency...2023-12-24
  • NF C52-410-2016 公共照明用高壓／低壓變壓器。 Transformers for outdoor lighting not exceeding 7.2 kV for instal...2023-12-17
  • JB/T 8447-2018 電渣爐用變壓器 Electroslag remelting furnace transformers2023-11-18
  • YB/T 4518-2016 500KV及以上變壓器用冷軋取向電工鋼帶 Cold-rolled grain oriented electrical steel strip for tra...2023-11-18
  • IEEE C57.140-2017 Guide For Evaluation And Reconditioning Of Liquid Immersed Power Transformers2023-11-15
  • NF EN 50708-2-1-2020 Power transformers - Additional European requirements - Part 2-1 : medium power transf...2023-11-03
  • NF F66-310-2017 Railway applications-Traction transformers and inductors on board rolling stock2023-10-27
  • TB/T 3159-2021 電氣化鐵路牽引變壓器 Traction transformer for electrified railways2023-10-20
  • TB/T 1869.8-2017 鐵路信號用變壓器 第8部分:信號設備雷電防護用變壓器 Transformers for railways signal system e...2023-10-12
  • UL 1562 BULLETIN-2018 Ul Standard For Safety Transformers, Distribution, Dry-Type - Over 600 Volts2023-09-27
  • DL/T 1945-2018 高壓直流輸電系統(tǒng)換流變壓器標準化接口規(guī)范 Specification of standard interface for HVDC transfo...2023-09-20
  • BS EN ISO 22829-2017 Resistance Welding Equipment. Transformers. Integrated Transformer-Rectifier Units Fo...2023-09-14
  • DL/T 1788-2017 高壓直流互感器現(xiàn)場校驗規(guī)范 Field calibrating specifications for HVDC instrument transformers...2023-09-01
  • GB 2536-2011 電工流體 變壓器和開關用的未使用過的礦物絕緣油 Fluids for electrotechnical applications—Un...2023-08-25
  • DL/T 2264-2021 智能變壓器現(xiàn)場檢驗規(guī)范 Site test specification for smart high voltage power transformer...2023-08-17
  • DL/T 1959-2018 電子式電壓互感器狀態(tài)評價導則 Guide for condition evaluation of electronic voltage transformer...2023-08-16
  • BS EN IEC 61869-11-2018 Instrument transformers. Additional requirements for low-power passive voltage tra...2023-08-05
  • BS IEC 60076-21-2018 Power transformers. Standard requirements, terminology, and test code for step-voltag...2023-07-31
  • CB/T 4412-2016 船舶電子設備用低頻變壓器 Low frequency transformer for ship electronic equipment2023-07-23
  • EN 61869-6-2016 Instrument transformers - Part 6: Additional general requirements for low-power instrument...2023-07-18
  • IEC 60076-15-2015 電力變壓器--第15部分：充氣電力變壓器 Power transformers – Part 15: Gas-filled power tr...2023-07-16
  • GB/T 1094.15-2020 電力變壓器 第15部分：充氣式電力變壓器 Power transformers-Part 15: Gas-filled power transform...2023-07-12
    • 123下頁尾頁